PHP mysql_errno() Function
Definition and Usage
The mysql_errno() function returns the numeric code of the error information in the last MySQL operation.
Returns the error number of the last MySQL function, or 0 (zero) if no error occurred.
Syntax
mysql_errno(connection)
| Parameter | Description |
|---|---|
| connection | Optional. Specifies the SQL connection identifier. If not specified, the last opened connection is used. |
Example
In this example, we will try to log into a MySQL server using a wrong username and password:
<?php
$con = mysql_connect("localhost","wrong_user","wrong_pwd");
if (!$con)
{
die('Could not connect: ' . mysql_errno());
}
mysql_close($con);
?>
Output similar to:
Could not connect: 1045
